president obama is having dinner tonight with a dozen of the senate democrats same way he's done with republican senators recently. twice before. on the menu for conversation tonight, gun control the budget and immigration reform. washington senator patty murray put the dinner together at the request of the white house. >>> tomorrow, the president heads to boston to participate in an interfaith service in honor of the three people killed and some 176 wounded after the two explosives went off at the marathon finish line monday in boston. cnn reporting now the lid from a pressure cooker has been found on the rooftop of a building at the crime scene. the fbi has confirmed at least one of the two bombs was made from a pressure cooker filled with explosives and things like ball bearings, nails and other lethal shrapnel. the other bomb was in some sort of container of metal consistency. it is not clear yet whether or not that too was a pressure cooker. investigators are using the pieces that they find to try and reconstruct the device. that includes the debris that doctors are finding insid